I think it would be near impossible to attract a quality left-sided CB, given VVD walks straight back into the side once it again. What top line player would gamble on keeping their place?
However, Upamecano can play (and has played) left CB or right CB (slightly more experience on the left, but plays both to a high level)
Prior to VVDs injury, I thought we had enough resources to cover the season, but I'm likely being out the full season exposes the one hole in that thinking.
If we're still in the hunt for #20 come January, I'd like to see us go all out to bring Upamecano in.